Finding the Third Proportional to 2,128,108 and 4,669,744

Step by Step Solution

1. Step 1: Write the proportion equation
   2,128,108 : 4,669,744 = 4,669,744 : x
2. Step 2: Convert to fraction form
   2,128,108/4,669,744 = 4,669,744/x
3. Step 3: Cross multiply
   2,128,108x = 4,669,744 × 4,669,744
4. Step 4: Simplify right side
   2,128,108x = 21,806,509,025,536
5. Step 5: Solve for x
   x = 21,806,509,025,536/2,128,108
6. Step 6: Final answer
   x = 10,246,899.61